:root {
  color-scheme: dark;
  --bg: #05080f;
  --bg-2: #08111f;
  --panel: rgba(8, 16, 29, 0.78);
  --panel-solid: #0b1423;
  --ink: #f6f8fb;
  --muted: #a6b2c3;
  --soft: #d8e2ef;
  --line: rgba(255, 255, 255, 0.13);
  --line-strong: rgba(113, 177, 255, 0.34);
  --blue: #4aa8ff;
  --blue-2: #8bc7ff;
  --white: #ffffff;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 18% 18%, rgba(74, 168, 255, 0.18), transparent 30%),
    radial-gradient(circle at 86% 8%, rgba(139, 199, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #05080f 0%, #07101d 42%, #05080f 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
video {
  display: block;
  max-width: 100%;
}

audio {
  width: 100%;
  margin-top: 14px;
}

#signal-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.44;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 24px;
  background: linear-gradient(180deg, rgba(5, 8, 15, 0.92), rgba(5, 8, 15, 0.56));
  backdrop-filter: blur(18px);
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(74, 168, 255, 0.11);
  color: var(--blue-2);
  font-size: 13px;
}

nav a {
  color: var(--muted);
  font-size: 14px;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

nav a:hover {
  color: var(--white);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  display: grid;
  min-height: calc(100vh - 76px);
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(5, 8, 15, 0.97) 0%, rgba(5, 8, 15, 0.78) 38%, rgba(5, 8, 15, 0.42) 70%, rgba(5, 8, 15, 0.74) 100%),
    url("./assets/ai-command-center-hero.png") center right / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 80%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 88px 24px 122px;
}

.eyebrow,
.section-kicker,
.tag {
  margin: 0 0 12px;
  color: var(--blue-2);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 890px;
  margin-bottom: 22px;
  font-size: clamp(45px, 7.4vw, 92px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  max-width: 790px;
  margin-bottom: 14px;
  font-size: clamp(30px, 4.1vw, 56px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.15;
}

.hero-lede {
  max-width: 730px;
  color: var(--soft);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 850;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.primary {
  background: linear-gradient(135deg, #f6fbff, #88c8ff);
  color: #061426;
}

.secondary {
  border: 1px solid var(--line-strong);
  background: rgba(74, 168, 255, 0.12);
  color: var(--ink);
}

.ghost {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
}

.hero-status {
  position: absolute;
  right: max(24px, calc((100vw - var(--max)) / 2 + 24px));
  bottom: 42px;
  z-index: 1;
  display: flex;
  max-width: 390px;
  gap: 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(5, 11, 20, 0.76);
  padding: 16px;
  backdrop-filter: blur(12px);
}

.hero-status p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.status-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  margin-top: 4px;
  border-radius: 999px;
  background: var(--blue);
  box-shadow: 0 0 0 0 rgba(74, 168, 255, 0.82);
  animation: pulse 1.9s infinite;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 88px 24px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.75fr);
  gap: 48px;
  align-items: end;
  border-top: 1px solid var(--line);
}

.intro p:last-child,
.contact p {
  color: var(--soft);
  font-size: 19px;
}

.section-heading {
  margin-bottom: 34px;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.pillar-grid article,
.stack-grid article,
.process-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(74, 168, 255, 0.08), rgba(255, 255, 255, 0.035)),
    rgba(8, 16, 29, 0.78);
  padding: 20px;
}

.pillar-grid article {
  min-height: 270px;
}

.pillar-grid span,
.process-list span {
  display: block;
  margin-bottom: 28px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.pillar-grid p,
.stack-grid p,
.process-list li,
.system-copy p,
.lab-card p {
  color: var(--soft);
}

.system-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.76fr) minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
  margin-bottom: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 16, 29, 0.72);
  overflow: hidden;
}

.system-card.featured {
  border-color: var(--line-strong);
  background:
    linear-gradient(120deg, rgba(74, 168, 255, 0.12), rgba(255, 255, 255, 0.035)),
    rgba(8, 16, 29, 0.72);
}

.system-visual {
  position: relative;
  display: grid;
  min-height: 310px;
  align-content: end;
  gap: 10px;
  padding: 20px;
  overflow: hidden;
}

.system-visual::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.system-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 0 42%, rgba(255, 255, 255, 0.18) 42% 43%, transparent 43%),
    radial-gradient(circle at 70% 26%, rgba(139, 199, 255, 0.28), transparent 28%);
}

.system-visual span {
  position: relative;
  z-index: 1;
  width: fit-content;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(1, 6, 14, 0.64);
  padding: 8px 11px;
  color: var(--white);
  font-size: 13px;
  font-weight: 850;
}

.visual-audit {
  background:
    radial-gradient(circle at 72% 20%, rgba(74, 168, 255, 0.38), transparent 30%),
    linear-gradient(135deg, #091a31, #05080f);
}

.visual-vagdevi {
  background:
    radial-gradient(circle at 72% 22%, rgba(139, 199, 255, 0.32), transparent 30%),
    linear-gradient(135deg, #0b2033, #05080f);
}

.visual-os {
  background:
    radial-gradient(circle at 72% 22%, rgba(255, 255, 255, 0.22), transparent 30%),
    linear-gradient(135deg, #102030, #05080f);
}

.system-copy {
  padding: 28px 28px 28px 0;
}

ul {
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--soft);
}

li {
  margin-bottom: 8px;
}

.text-link {
  display: inline-flex;
  margin-top: 16px;
  color: var(--blue-2);
  font-weight: 850;
}

.text-link:hover {
  text-decoration: underline;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.lab-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 16, 29, 0.78);
}

.lab-card img,
.lab-card video {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
  background: var(--panel-solid);
}

.lab-card div:last-child {
  padding: 20px;
}

.audio-card {
  display: flex;
  flex-direction: column;
}

.audio-visual {
  display: flex;
  min-height: 246px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at center, rgba(74, 168, 255, 0.25), transparent 35%),
    linear-gradient(135deg, #09192c, #05080f);
}

.audio-visual span {
  display: block;
  width: 12px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--white), var(--blue));
  animation: bars 1.5s ease-in-out infinite;
}

.audio-visual span:nth-child(1) {
  height: 44px;
}

.audio-visual span:nth-child(2) {
  height: 86px;
  animation-delay: 120ms;
}

.audio-visual span:nth-child(3) {
  height: 122px;
  animation-delay: 240ms;
}

.audio-visual span:nth-child(4) {
  height: 96px;
  animation-delay: 360ms;
}

.audio-visual span:nth-child(5) {
  height: 64px;
  animation-delay: 480ms;
}

.audio-visual span:nth-child(6) {
  height: 38px;
  animation-delay: 600ms;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 255px;
}

.process-list strong {
  display: block;
  margin-bottom: 9px;
  color: var(--ink);
  font-size: 18px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stack-grid article {
  min-height: 210px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: center;
  border-top: 1px solid var(--line);
}

footer {
  display: flex;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 30px 24px 42px;
  color: var(--muted);
  font-size: 14px;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(74, 168, 255, 0.82);
  }
  70% {
    box-shadow: 0 0 0 13px rgba(74, 168, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(74, 168, 255, 0);
  }
}

@keyframes bars {
  0%,
  100% {
    transform: scaleY(0.72);
  }
  50% {
    transform: scaleY(1);
  }
}

@media (max-width: 1040px) {
  .pillar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-grid,
  .stack-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .site-header,
  .intro,
  .system-card,
  .contact {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
  }

  nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(5, 8, 15, 0.98) 0%, rgba(5, 8, 15, 0.74) 48%, rgba(5, 8, 15, 0.96) 100%),
      url("./assets/ai-command-center-hero.png") center / cover no-repeat;
  }

  .hero-content {
    padding-top: 68px;
    padding-bottom: 180px;
  }

  .hero-status {
    right: 24px;
    left: 24px;
    bottom: 34px;
    max-width: none;
  }

  .system-copy {
    padding: 0 22px 24px;
  }

  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header {
    position: relative;
    gap: 18px;
    padding: 16px;
  }

  .brand,
  nav {
    width: 100%;
  }

  .site-header,
  nav {
    justify-content: flex-start;
  }

  nav {
    gap: 12px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 31px;
  }

  .hero-content,
  .section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-content {
    padding-top: 46px;
  }

  .hero-status {
    right: 16px;
    left: 16px;
  }

  .pillar-grid,
  .lab-grid,
  .process-list,
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .pillar-grid article,
  .stack-grid article,
  .process-list li {
    min-height: auto;
  }

  .contact-actions,
  .button {
    width: 100%;
  }

  footer {
    flex-direction: column;
    gap: 8px;
    padding-left: 16px;
    padding-right: 16px;
  }
}